Home / 2,808.39-3,875.55-1,549.46

Finding the Fourth Proportional to 2,808.39, 3,875.55 and 1,549.46

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Solution

The fourth proportional to 2,808.39, 3,875.55 and 1,549.46 is: 2,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.39 : 3,875.55 = 1,549.46 : x
  2. Step 2: Convert to fraction form
    2,808.39/3,875.55 = 1,549.46/x
  3. Step 3: Cross multiply
    2,808.39x = 3,875.55 × 1,549.46
  4. Step 4: Simplify right side
    2,808.39x = 6,004,999.04
  5. Step 5: Solve for x
    x = 6,004,999.04/2,808.39
  6. Step 6: Final answer
    x = 2,138.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.